Home / 11,980.98-16,528.15-7,730.94

Finding the Fourth Proportional to 11,980.98, 16,528.15 and 7,730.94

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Solution

The fourth proportional to 11,980.98, 16,528.15 and 7,730.94 is: 10,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.98 : 16,528.15 = 7,730.94 : x
  2. Step 2: Convert to fraction form
    11,980.98/16,528.15 = 7,730.94/x
  3. Step 3: Cross multiply
    11,980.98x = 16,528.15 × 7,730.94
  4. Step 4: Simplify right side
    11,980.98x = 127,778,135.96
  5. Step 5: Solve for x
    x = 127,778,135.96/11,980.98
  6. Step 6: Final answer
    x = 10,665.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.